ReviewsPrinted Circuit Module

4Pcs INA219 I2C Bi-Directional DC Current Power Supply Sensor Breakout Board Module I2C IIC Interface

• INA219 module is an I2C interface with a drift, bi-directional current / power monitor integrated circuit (IC), and further expand the energy-saving....
• INA219 I2C Bi-directional DC Current Power Supply Sensor, Working Voltage 3~5V.
• INA219 module small size, low cost, high accuracy. It not only can monitor the voltage drop across a shunt resistor on the sensing shunt supply....
• INA219 can be achieved within the maximum error accuracy of +1% from -40° C to 85° C temperature range, the maximum offset is 100 uV. The....
• Appliaction:The module is used for I2C port zero drift / bidirectional current / power monitoring sensor module. The device is available in a SOT23....

PC Interface Controller

• 【One-year after-sale warranty】The PWM to voltage module converts PWM digital signals to 0 to 10V analog signals. It can be used to switch the signal interface of PLC or other industrial control board. Adjust the output voltage by adjusting the PWM duty cycle. The module is small in size and easy to apply in different places.003cbr003e.
• Using MCU embedded technology. Easy to operate, can be fine-tuned by potentiometer.003cbr003e.
• Select the PWM signal input level range by short circuit. The module is small, easy to carry and easy to use.003cbr003e.
• (current greater than 100mA)，PWM signal receiving frequency range: 1KHZ-3KHZ.
• When power on for the first time, it is best to do a calibration and debugging: find a signal with a 50% duty cycle and connect it to PWM and GND. Jumper caps set the corresponding voltage range. When the frequency is 1KHZ-3KHZ, use a multimeter to measure the two ports of VOUT and GND. At this time, the meter displays about 5V. Adjust the potentiometer on the board so that the multimeter displays 5.00v.003cbr003e.

HiLetgo 2pcs CP2102 MICRO USB to UART TTL Module 6 Pin Serial Converter STC Replace FT232

High Voltage Generator, Small Size 40Kv-50Kv Ac High Voltage Output High Voltage Pulse Generator, for Transformer, Small Scientific Production

• The module can output high voltage pulse current, small size and high efficiency.
• This module is the finished module of transformer/booster for small scientific production.
• The input voltage is 3.6V/4.8V DC and will output 40kV-50kV AC high voltage.
• It can be used as security equipment accessories, gas range ignition, or for electrostatic adsorption experiment.
• The peripheral circuit is simple, simply connect the switch and battery, and the discharge is great.

COLOROCK Mini Smart Relay WiFi Switch, 16A 1 Gang DIY Smart Light Switch Module Smart Life/Tuya App, Compatible with Alexa and Google Home Smart Speakers,with Appointment Timing Function.(2Pack).

• This smart wifi module with mini design suits for wall switch box,and easily hide it into your hidden wall switch box of your traditional switch without any influences on your original decoration style to make it smart.More importantly,your traditional switch and this smart module can work independently under non-interfering mode. (Note:This module is only suitable for rocker switch,see figure 2 for details.).
• Can be used as a 1-way or 2-way circuit (2 switches control 1 light).
• simply connect to 1 of the 2 switches and convert the connected device into a smart one (for 2-way circuit).
• Take full control of connected appliances with timers, schedules and countdown (1/5/30 mins, 1 hour, etc.) with the app.
• share control with family and friends for added convenience.
• Control with your smart phone via Smart Life/Tuya app without a separate hub..
• The MINI WiFi Switch is compatible with Amazon Alexa ( Amazon Echo/Echo Dot/Amazon Tap) and Google Home Assistant. It allows you to use your voice to control home devices and enjoy hands-free experience..

Battery Charger Module USB TP4056 3.7V 4.2V to 9V 5V 2A Charge Discharge Integrated Step Up Module,18650 Lithium Li-ion Battery Charger Module(6 PCS)

• Material: Battery charger module made of electronic components.Can be used for multimeter, converted to lithium battery charging..
• Features: Battery charger module combines the TP4056 battery charger with a boost circuit. Adds a battery and converts a low power DC device to a USB rechargeable device..
• Instructions for use: TP4056 Charger Module can be used for multimeter to convert to charge lithium batteries. VIN+ port input 5V solar panel, BAT+ port can output 4.2V to charger 3.7V 18650 battery..
• Small and delicate: 1.3in*0.92in/33mm*23mm.
• Package contains: 6 * Lithium Li-ion Battery Charger Module.

ALMOCN 12pcs 18650 18650 Lithium Li-ion Battery Charger Module 2A USB TP4056 Adjustable Boost Module DC-DC 3.7V to 5V 9V 12V Step Up Boost Module DIY Kit Parts

• Output voltage: 4.3-27V DC (Continuously adjustable).
• Battery charger module combines the TP4056 battery charger with a boost circuit. Adds a battery and converts a low power DC device to a USB rechargeable device..
• Charging current: Max 1A, Discharging current: Max. 2A.
• Instructions for use: TP4056 Charger Module can be used for multimeter to convert to charge lithium batteries. VIN+ port input 5V solar panel, BAT+ port can output 4.2V to charger 3.7V 18650 battery..
• 2A USB 18650 Lithium Li-ion Battery Charger Module Adjustable Boost Module DC-DC 3.7V to 5V 9V 12V Step Up Boost Module TP4056 DIY Kit Parts.

HiLetgo RFID Kit - Mifare RC522 RF IC Card Sensor Module + S50 Blank Card + Key Ring for Arduino Raspberry Pi

• The MF522-AN module design the circuit of card read by using the original Philips MFRC522 chip..
• Easy to use, low cost, and applicable to equipment development and card reader development etc..
• Applicable for the user who need to design or manufacture the RF card terminal..
• The module can be directly loaded into the various reader molds..
• The module use a voltage of 3.3V, it can connected communication with user's any CPU mainboard through several lines of SPI interface, it can ensure stable and reliable work, and reader distance..

3 Pieces ESP WROOM 32 ESP32 Development Board 2.4GHz WiFi Dual Cores Microcontroller Integrated with Antenna RF Low Noise Amplifiers Filters

• Package contains: you will get 3 pieces of ESP-32 2.4GHz dual-mode WiFi development boards, enough for your daily use and replacement.
• Multiple functions: ESP32 development board integrates antenna switches, RF balun, power amplifiers, low noise amplifiers, filters and power management modules.
• And the entire solution occupies the smallest printed circuit board area.
• ESP-32 development board is safe, reliable and scalable to various applications, bringing you a lot of convenience.
• Small size: ESP-32 dual-mode module is compact and easy to embed into your device, convenient to use.
• Low power consumption: the development board uses 2.4GHz dual-mode Wi-Fi, chip ESP-WROOM-32, and 40nm low power consumption technology.

XINGYHENG DC-DC High Power Adjustable Booster Regulator Module Input 3.0~35V to Output 3.5~35V 100W with Digital Display Voltmeter Voltage Power Supply Converter Module

• ...oxidatioan), inner conductor: pure copper.it is long lasting and durable for you to use..
• Package including: 1 Pack of module, which consist of high-precision USB port, high frequency filter capacitor and power indicator. A large area of copper and dense vias enhance heat dissipation. it has current limiting, short circuit and over temperature protection. Even if the output is short circuit, it will not burn out the module and it is safer..
• High Performance : Input voltage is about 3V-35V. Output voltage is about adjust between 3.5-35V. Input current is 9A (Max), output current is 6A (Max). Self-calibration voltmeter is more convenient to monitor and adjust the output or input voltage to ensure more accurate and stable output voltage..
• High Power High Efficiency: High conversion efficiency up to 96%. high power, high efficiency and low ripple with power indicator. The ripple and volume of are less, achieving good effect with a small capacity filter. With over - temperature protection and power indicator, it is safer to use..
• A wide range of applications: This module can be useful for a wide range of applications, such as battery, power transformer, DIY adjustable power supply, and so on.

BRECKWELL Circuit Control Board Panel P20 P26 P23 P23i P24 P24i A-E-301

• Breckwell Circuit Control Board Panel Module, P20, P23, P23i, P24, P24i, P26, P32i, P2000, P2000i, P2700, Part# C-E-301 | A-E-301.
• Replacement digital 4 RPM circuit board / control panel for most Breckwell pellet stoves made before 2002. Fits the following Breckwell pellet stove....
• Genuine Breckwell OEM Replacement Circuit Control Board.
• Guaranteed Newest Stock and Latest Inventory.
• Please ensure you require this control board prior to ordering. We are unable to return circuit boards that have been installed or used in anyway. Be....